Peculiarities of the interaction of ytterbium with transition metals (Cr,Mn) and aluminium

The isothermal sections of the Yb(Cr,Mn)Al phase diagram at 770 K have been constructed from X-ray powder diffraction phase analysis of arc-melted and annealed alloys. The Cr-based system contains three ternary compounds, YbCr2Al20 (CeCr2Al20 structure type), Yb6Cr4 + xAl43 − x (x = 1.76, new stru...

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Bibliographic Details
Published in:Journal of alloys and compounds 1995-03, Vol.219 (1-2), p.219-221
Main Authors: Yanson, T.I., Manyako, N.B., Bodak, O.I., Cerny, R., Gladyshevskii, R.E., Yvon, K.
Format: Article
Language:English
Subjects:
Crystal structure
Isothermal section
Phase diagrams
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Summary:The isothermal sections of the Yb(Cr,Mn)Al phase diagram at 770 K have been constructed from X-ray powder diffraction phase analysis of arc-melted and annealed alloys. The Cr-based system contains three ternary compounds, YbCr2Al20 (CeCr2Al20 structure type), Yb6Cr4 + xAl43 − x (x = 1.76, new structure type) and YbCrxAl12 − x (x = 2.60–4.30, ThMn12 structure type), while the Mn-based system contains only two, YbMnxAl12−x (x = 2.86–4.55, ThMn12 structure type) and Yb6Mn4 + xAl43 − x (x = 1.76, Yb6Cr4 + xAl43 − x structure type). The immiscibility range between Yb and the transition element decreases more rapidly with increasing Al content in the Mn system than in the Cr system.
ISSN:0925-8388
1873-4669
DOI:10.1016/0925-8388(94)05039-2